Stone-rake.



W. E. DAHN.

STONE RAKE.

APPLICATION mm MAR. 21. me.

1,21 1,552. Patented Jan. 9, 1917.

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W. E. DAHN.

STONE RAKE.

APPLICATION FILED mm. 2:. ms

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ATTORNEY m G av m: soul's runs in. Pummmo umsunm ou c c ratchet 14 and thus UNITED STATES "WILLARD E. DAHN, F HAR EM, MONTANA.

STONE-BAKE.

To all whom z'tmm concern:

Be it known hat I, Trun s E. Dans, a citizen of ,the United States, residi at flarle yin the county of laine and stat of Montana, have invented certain new and useful Improvements in Stone-Rakes, of which the following is a specification.

'his invention ,relates to an in proved rake for removingstones and gravel from a field and the principal object of the invention is to provide a rake which can remove stones from a harrowed field and which is so mounted that it will receive ,a reciprocating movement vtending to sift ,dirt taken up with the stones but at the same time leave t e stones in the reee tacle.

other object of the invention is to so vertically adjusted according to the depth it is cesi edto have the ends of the prongs dig into the soil.

nother ob ect of the invention is to pro vide a rake of the character described which will be composed of a comparatively small number of arts, easy to assemble and adjust and not liable to readily get out of order or need repair.

This improved stone rake is illustrated in t e accompanying drawings, wherein Figure 1 is a view showing the improved rake in side elevation. Fig. 2 is a view showing the improved rake in top plan. ig. 3 is a vertical, longitudinal sectional view taken along the line 33 of Fig. 2. Fig. 4 is a fragmentary view taken along the line H of Fig. 2 Fig. 5 is a sectional view through the pawl taken along the line 5-5 of Fig. 4.

The supporting axle of this machine which constitutes a crank shaft carries the wheels 11 which that it may be or both of these wheels is provided with a pawl 13 which is yieldably held in engagement with a ratchet l4 rigidly mounted upon the axle 10. This pawl 13 will be yieldably he d in engagement with the ratchet by means of the spring 15 and therefore when the machine is moving forwardly, the axle will be rotated. In order to releasably hold the pawl 13 out of engagement with the permit the machine to be wn forwardly without the axle rotating,

Specificationof Letters Patent app icati n-fi e MarchW, 1916- *Patented Jan. 9, 191 '7. Serial No. 87,058.

there hasbeen rovidedalatch pin 16 which pin isheld wit lin the pocket 17 of the pawl y means of the threaded plug 18 and yieldably held .in a position to ,enter the opening l9'in the wheel hub 12 vby means of Ithe springs 20. A head or eye 21 is provided for the latch n so that this latch pin can e drawn ,outfwardly to permit the springs 15 ,to return the ratchet 14.

frame 22 has its arms 23 loosely mounted upon the end portions of the axle l0 and carries a cross bar or rod 24- which cross bar extends between the arms 23 and carries links 25 serving to support the pan 26, The rear ,end portion of itlllS pan is supponted by the links 27 mounted upon the rod 28 and connected with :the crank 29 of the crank shaft or axle 10. Therefore as the axle rotates the pan or receptacle will 0 reciprocated with a vertical swinging v m Serving to agitate (the rock and stone removed from the field by the rake teeth 30 thus causing the dirt to sift through between the teeth. retained in the pile upon the ground. should be noted that this rod 31 carries a spring 33 which engages the abutment 34 and therefore serves to yieldably retain the pan in the proper position but permits movement of the pan when necessary.

The draft tongue 35 will be connected with the frame 22 and cross bar 24 in any suitable manner and has its rear end portion extended for engagement with the standards 36 of the drivers seat 37.

It will thus be seen that there is provided a rake which is so constructed that stone can be removed from a field after the field has been harrowed and prior to planting, the machine being so constructed that the dirt gathered with the stone can be shaken out of th There has there has been provided a machine so constructed that the pan may be held at a dethe pawl nto engagement with i sired angle thus permitting the teeth of the rake to extend at the proper angle for gathering thc rock and stone from the field. 1 have therefore provided a machine which will operate very efficiently and which can be easily operated, the mechanism being simple in construction and easy to assemble and control.

What is claimed is 1. A stone rake comprising a frame including a transversely extending bar, an axle rotatably carried by said frame and constituting a crank shaft, supporting wheels mounted upon the axle and turning the axle with the wheels, a receptacle having its bottom formed of longitudinally extending fingers, links connecting the forward end portion of said receptacle with the cross bar of said frame, a shaft carried by the rear portion of said receptacle, links connecting said shaft with said crank shaft, and means for releasably holding said receptacle in an adjusted position.

2. A stone rake comprising a frame, an axle connected with said frame and constituting a crank shaft, a receptacle having teeth forming a bottom, links connected with said crank shaft and with the rear portion of said receptacle, links connected with said copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Patents,

frame and with the forward portion of said receptacle, and means for rotating said crank shaft.

3. A stone rake comprising a frame, a crank shaft connected with said frame, an

adjusting lever, a rod extending from said porting wheels mounted upon said crank shaft, means for releasably connecting the crank shaft with one of the supporting wheels to turn the crank shaft with the wheel, a receptacle, links connecting said receptacle with said crank shaft, and links connecting said receptacle with said frame.

In testimony whereof I afiix my signature in presence of two witnesses.

WILLARD E. DAHN. Witnesses G. R. BARTON, E. S. MIMEGH.

Washington, D. C."

'a frame, a crank shaft connected with said frame, sup- 

